标准编号：ISO/TS 11665-12:2018
中文名称：环境空气中的放射性测量：氡222 第12部分：防水材料中扩散系数的测定：膜侧活性浓度的测定方法
英文名称：Measurement of radioactivity in the environment — Air: radon-222 — Part 12: Determination of the diffusion coefficient in waterproof materials: membrane one-side activity concentration measurement met
发布日期：2018-10
标准范围
This document specifies the method intended for assessing the radon diffusion coefficient in waterproofing materials such as bitumen or polymeric membranes, coatings or paints, as well as assumptions and boundary conditions which will be met during the test.
The test method described in this document allows to estimate the radon diffusion coefficient in the -5 2 -12 2 [8][9] range of 10 m /s to 10 m /s with an associated uncertainty from 10 % to 40 %.
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